Vishay launches new package option for rectifiers and TVS devices

Malvern, Pa.  Vishay Intertechnology, Inc. has launched a new SMP package type for its rectifier and transient voltage suppressor (TVS) products that delivers the same current and power ratings as the SMA package in a 44% smaller footprint. Rectifiers in the SMP package handle up to 2 amps (A) while delivering industry-record levels of thermal resistance, according to the company.

The single-chip, surface-mount SMP (DO-220AA) package features solder pads that are compatible with other SMD devices, therefore, no modification is needed to the PC-board layout when they are used as higher-performing upgrades to existing devices.

Vishay Semiconductors has released more than 45 new devices in the new SMP package including Schottky, standard, and ultra-fast rectifiers as well as TVS components. The new devices target power supply and power conversion applications in desktop and notebook PCs, servers, disk drives, mobile phones, PDAs, hybrid ICs, as well as automobile electronic sensors and control units, where the 1-mm height and 2 x 3.8-mm footprint allows designers to reduce the size of power circuitry.

Designed for secondary rectification of ac-to-dc and dc-to-dc converters, freewheeling, and polarity protection, six new Schottky rectifiers in the SMP package can handle voltages from 20 V to 40 V and maximum currents of 1 A (part numbers SS1P3L and SS1P4L) and 2 A (part numbers SS2P2, SS2P3, SS2P4, SS2P2L, and SS2P3L). Featuring a very low forward voltage drop, these rectifiers improve power efficiency and generate less heat in end products, resulting in increased reliability and a higher comfort level during use, said the company.

In addition, new standard rectifiers  S1PA through S1PJ  can handle 1 A and 50 V to 600 V of power, making them the optimal solution for general-purpose rectification, polarity protection, and rail-to-rail protection in automotive applications.

New ultra-fast rectifiers with 1 A and 50 V to 600 V capabilities offer designers a choice of recovery times as fast as 15 ns for computers and other consumer electronics applications (part numbers ES1PA through ES1PD), or low leakage currents for the high-temperature automotive environment (part numbers ESH1PA through ESH1PD). Typical junction-to-case thermal resistance for all of the above products is a low 20&degC/W.

Offering twice the power rating of the nearest competitor in a sub-SMA package, Vishay's new TVS devices in the SMP package can handle up to 400 W with breakdown voltages from 13 V to 43 V. Used in consumer, computer, industrial, and automotive applications, the new devices (TPSMP13 through TPSMP43) are designed to protect ICs, transistors, signal lines of sensor units, and electronic units from electrostatic discharge, lightning surges, and other transient voltages.

Pricing for U.S. delivery ranges from $65 to $80 per 1,000 units. Delivery is six weeks for larger orders.